<!DOCTYPE html>

<head>
  <title>Hello World</title>
</head>
<body>
 <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
 <script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.9.1/jquery-ui.min.js"></script>
 <script>
  alert('hello world');
   </script>
</body>
 

